This prism assembly design incorporates a simple stainless steel locking mechanism that’s easy to set while adjusting the prism and target tilt.

The heavy-duty 62 mm silver-coated prism is sealed in a strong canister with an ‘O’ ring to prevent water and dust from getting inside. The prism can be mounted in either 0 or -30 mm offset positions.

This assembly features a 6 x 9 inch target size. Other color combinations are available, see below. The tilting axis height is 115 mm.

The 6402-20 weighs 1.75 lb (0.79 kg).